Improvement in machines for dressing and compressing hoops



J. B. DOUGHERTY & J. NAYLOR, Jr. Machine for Dressing and CompressingHoops.

No. 211.716. Patented Jan. 28,- I879.

N. PETERS. FNDTGLITHOGRAPHER, WASHKNGTOIL D. C.

NITED 'IA'IES ATEN'I FIG.

JOHN B. DOUGHERTY AND JAMES NAYLOR, JR, OF ROCHESTER, NEV YORK; SAIDNAYLOR ASSIGNOR TO SAID DOUGHERTY.

IMPROVEMENT IN MACHINES FOR DRESSING AND COMPRESSING HOOPS.

Specification forming part of Letters Patent No. 2] 1,716, dated January28, 1879 application filed September 11, 1878.

To all whom it may concern:

Be it known that we, JOHN B. DOUGHERTY and J AMES NAYLOR, J r., ofRochester, in the county of Monroe and State of New York, have inventedcertain new and useful Improvements in Machines for Dressing,Compressing, and Finishing Hoops; and we do hereby declare that thefollowing is a full, clear, and exact description of the invention,which will enable'others skilled in the art to which it appertains tomake and use the same, reference being had to the accompanying drawings,and to letters of reference marked thereon, which form a part of thisspecification.

The object of this invention is to produce a machine capable of puttingasmoothly-finished surface upon wooden hoops, compressing and compactingits fibers as well as crimping or coiling, if desired, ready for use ata single operation; and the invention consists in the construction andarrangement of a pair of suitably-shaped compressing-rollers inconnection with the instrumentalities needed for chamferin g andcrimping or coiling, as will be hereinafter fully described, andspecifically pointed out in the claims.

Figure 1 of the drawings is a plan, and Fig. 2 is a verticallongitudinal section on the line as a: of Fig. 1.

Heretofore it has been the practice of manufacturers, whenit was desiredto make wooden hoops with a smooth and finished outer surface, to passthe same after having been cut or sawed from the 10 gthrough aplaning-machine, which imparted the necessary finish. This processalways caused the waste of more or less material, it being cut intoshavings during the operation. The surface was alsoleftporous and open,as the action of the rotating cutters upon the wood tended rather toopen instead of closing the pores, thus rendering it liable to imbibemoisture, causing frequent swelling and shrinking of the hoop, whichsoon lost its strength under these repeated changes.

By this invention the smooth surface is produced by compression, whichcauses the elevated portions to be pressed down to an even surface withthose which are more depressed,

while the fiber of the whole hoop is compacted and solidified to such adegree as to close the pores of the wood and prevent the readyabsorption of water or other fluid, while all, or nearly all, thematerial of the hoop as cut from the log is retained without waste andin its full strength.

In order to accomplish these results in a cheap and expeditious manner,the machine, which will now be described, has been constructed, and inwhich- The letter A of the drawings designates the bed, and Brepresenting two upright side pieces rising from and properly secured tothe bed. Connecting these side pieces near their top is thedriving-shaft O, revolving in suitable bearings and rotated by powerderived from a steam-engine or other suitable motor. pon one end of thisshaft is secured a pulley, E, a belt from which communicates motion tothe pulley F upon the shaft G. This shaft crosses the machine a shortdistance above the bed A, and revolves in bearings in the sidepieces, BB.

Secured upon the shaft G, and rotating with it, is the bevel-gear'a,which engages with a similar gear, a, attached to thegrooved'pressure-roll H: Theperiphery of this roll is provided withflanges b b, forming a groove be tween them, conforming in cross-sectionto that of the outer surface of the finished hoop.

This roll H acts in conjunction with the roll H, the periphery of whichis of such thickness as to fill the space between the flanges I) of theroll H without creating friction by im pinging against them, the axis ofthe roll H being adjusted in such a position as will cause the distancebetween its periphery and that of the roll H to exactly equal thethickness of the finished hoop.

It will be evident that the groove in the periphery of the roll H may beof any desired form to suit the contour of the finished hoop, and theflanges I) may be placed at a greater or less distance from each otherto suit the width of the hoop operated upon.

When it is desired to give the hoop an oval or other rounded outersurface, it may improve its finished appearance to remove the outercorners before passing it between the compressing-rolls. This may bereadily accomplished by means of the rotary cutters I and I, which areplaced in advance of the compressing-rolls and driven by the belts c c,acting upon the pulleys d d from the pulley J upon the shaft 0. Thesecutters simply remove the corners, which, by the elasticity of the wood,would be likely to spring out and show after the hoop was compressed;or, if desired, one of them may be made to remove a portion of theinside of the hoop to increase its flare.

A crimping-roll, K, may be placed in the rear of the compressing-rollsto give the hoop a bend or set into the circular form it is to have whenapplied to use.

If desired, a coiling apparatus may also be attached to form the hoopsinto suitable coils for shipment as they come from the machine.

It will be apparent that the details of construction in this machine maybe greatly varied to suit the work required of it, the essentialfeatures being the two compressingrolls aeting in concert, so as tocompress and solidify the wood forming the hoop, which may be of any ofthe many varieties in use for different purposes, such as themanufacture of barrels, kegs, cheese-boxes, buckets, or any of thenumerous articles of coopers ware in common use.

Having thus described our invention, we

claim as new, and desire to secure by Letters Patent of the UnitedStates, the following:

1. In a machine for compressing and compacting the fibers of woodenhoops and giving form to their exterior surface, the compressing andforming rolls H and H, arranged so as to bear upon the material passingbetween them with a constant unyielding pressure, in combination with acrimping-roller, substantially as and for the purpose specified.

2. The compressing-rolls, operated as described, in combination with therotary cutters for removing the corners from the hoop, as and for thepurpose set forth.

3. In a hoop-finishing machine, the combina-' tion of thecompressing-rolls, the rotary cornercutters, and the crimping-roll, allarranged and operated substantially as shown and described.

In testimony that we claim the foregoing as our own we hereunto affixour signatures in presence of two witnesses.

JOHN B. DOUGHERTY. JAMES NAYLOR, J R.

Witnesses:

WM. D. GALLAGHER, FRANK J. ELLIs.

